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giant cell arteritis

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Also known as Giant cell arteritis (disorder), Giant cell arteritis NOS (disorder), Horton's disease, Temporal arteritis (disorder), Temporal arteritis, Cranial Arteritis, Polymyalgia Rheumatica, Horton disease

human disease

Key facts

Other names
Temporal arteritis, cranial arteritis, Horton disease, senile arteritis, granulomatous arteritis
Specialty
Rheumatology , emergency medicine , Immunology
Symptoms
Headache , pain over the temples, flu-like symptoms , double vision , difficulty opening the mouth
Complications
Blindness , aortic dissection , aortic aneurysm , polymyalgia rheumatica
Usual onset
Age greater than 50
Causes
Inflammation of the small blood vessels within the walls of larger arteries
Diagnostic method
Based on symptoms and blood tests, confirmed by biopsy of the temporal artery
Differential diagnosis
Takayasu arteritis , stroke , primary amyloidosis
Treatment
Steroids , bisphosphonates , proton-pump inhibitor
Prognosis
Life expectancy (typically normal)
Frequency
~ 1 in 15,000 people a year (> 50 years old)

via Wikipedia infobox

Research

10,314 papers

via PubMed

Wikidata facts

Instance of
symptom or sign
Subclass of
disease
Image
Gray508.png
Show 10 more facts
symptoms and signs
headache
health specialty
rheumatology
NCI Thesaurus ID
C35065
ICPC 2 ID
K99
ICD-9-CM
446.5
drug or therapy used for treatment
sumatriptan
external data available at URL
www.nanbyou.or.jp/entry/3928
Commons category
Giant-cell arteritis
on focus list of Wikimedia project
WikiProject Medicine
Sources (10)

via Wikidata · CC0

~11 min read

Encyclopedic overview

Giant cell arteritis (GCA), also called temporal arteritis, is an inflammatory autoimmune disease of large blood vessels. It is the most common type of systemic vasculitis affecting adults. Symptoms may include headache, pain over the temples, flu-like symptoms, double vision, and difficulty opening the mouth. Complications can include blockage of the artery to the eye with resulting blindness, as well as aortic dissection, and aortic aneurysm. GCA is frequently associated with polymyalgia rheumatica.

The cause is unknown. The underlying mechanism involves inflammation of the small blood vessels that supply the walls of larger arteries. This mainly affects arteries around the head and neck, though some in the chest may also be affected. Diagnosis is suspected based on symptoms, blood tests, and medical imaging, and confirmed by biopsy of the temporal artery. However, in about 10% of people the temporal artery is normal.

Excerpted from Wikipedia’s “giant cell arteritis” article, available under the CC BY-SA 4.0 licence.